Were insider informations used by Plumb and Patti to sell shares...

Were insider informations used by Plumb and Patti to sell shares outside the OPEN MARKET
before the BARDA decision were published ? (8 May 2014)
According to my information from April/May Russel Plum hold 143 322 shares
Joseph Patti 71661 shares
After 2 purchases of Biota shares they now have Pumb 127579 shares
Patti 62241 shares
then they sold outside the OPEN MARKET Plumb 31031 shares
Patti 14467 shares
I ask me, when did they sell this shares?

Best wishes from Germany